SERVICE MANUAL for MODEL AirV Rooftop Air Conditioning Systems
SERVICE MANUAL for MODEL AirV Rooftop Air Conditioning Systems
SERVICE MANUAL for MODEL AirV Rooftop Air Conditioning Systems
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SYSTEM AND PROBABLE CAUSEPROBABLE REMEDY2.14 INADEQUATE HEAT (FREE -BLOW HEAT ONLY)1. No heat from heat strip. 1. Verify AMP draw (13.8 AMP)Verify resistance through heating element. (9 OHM)Check bi--metal switch. If open, replace switch.2.15 INADEQUATE HEAT (HEAT -PUMP)NOTE: Allow unit to operate 15 minutes after switchingfrom cooling mode.1. Reversing valve not operating2. Outdoor coil icing.Clearing Diagnostic Alarms1. Check <strong>for</strong> 115 volts at reversing valve coilCheck <strong>for</strong> reversing valve restrictionVerify compressor operation2. Check outdoor coil sensorWhen a repair has been accomplished due to a corresponding alarm, the alarm must be cleared. This is doneby disconnecting the 12 VDC power to the ducted ceiling assembly <strong>for</strong> one or two seconds. Once the 12 VDCpower is reconnected, the alarm should have been cleared.10-092--3T--298
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